Eurozone (noun)

1. An area or region consisting of European Union (EU) countries that have adopted the euro as their currency.
2. The collective group of countries in the European Union that use the euro as their currency.

Origin:

From euro- ("relating to the euro currency") + zone.

Examples:

1. The eurozone consists of 19 of the 27 European Union countries.
2. The eurozone crisis had a major impact on the global economy.
3. The eurozone countries have been working to strengthen their economic ties.
4. The eurozone provides a stable and strong currency for trade and investment.
5. The eurozone is one of the largest currency areas in the world, with over 330 million people.